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In The News

Tracking Discharge From A Confined Disposal Facility

Getting things in place to monitor total dissolved solids (TDS) around a dredging operation sometimes takes a quick turnaround. Just ask engineers at Tetra Tech who had short notice to get ready for tracking discharge out of a confined disposal facility (CDF) during the Avalon Back Bay Dredging Project . It’s entering what looks to be its final stage in 2016. Back in November 2014, they got approval to monitor during one of the early stages of the dredge work. But by the time they secured it, there was barely more than a week to get preparations underway. Luckily, they were able to rent the gear they needed just as dredging of areas in and around New Jersey’s Princeton Harbor began.

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Historic Floods In Louisiana Break Streamgage Records

During the recent historic floods in Louisiana, six streamgages operated by the U.S. Geological Survey (USGS) registered new peak records, according to a statement from the agency. An additional 50 stations were overtopped by the floodwaters. Thirty of the agency’s gages registered over the flood stage for several days, and many were damaged. Some were overcome by flood waters, while others were destroyed by debris carried downstream by the fast-moving water. Graphs of data logged by the streamgages give striking timelines of the flooding. One that was deployed on the Comite River began to register water level rises Aug. 11, 2016 and passed its peak record sometime early on Aug. 13. From that point, it stayed above the old record, around 36 feet, until near the end of Aug. 15.

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Modeling Lake Erie’s 40 Percent Phosphorus Reduction Target

Results of new modeling research led in part by the Nature Conservancy and Ohio Sea Grant outline some of the steps that will be needed to reduce phosphorus entering Lake Erie by 40 percent. The findings underscore some difficulties, as well as positive effects that could be achieved for fish in streams flowing into the lake’s western basin. The Western Lake Erie Basin Conservation Effects Assessment Project (CEAP) was in the making for around three to five years, says Amy Brennan, Lake Erie conservation director with the Conservancy. She detailed the project’s findings during a meeting of Great Lakes reporters hosted by Ohio State University’s Stone Laboratory on Lake Erie’s Gibraltar Island. The CEAP sought to answer a few questions.

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